I've studied the pictures and it doesn't look like a re-blue to me. All the screws slots look just fine (not mangled) and the pins look as they should. Also little if any finish wear at the muzzle. Many of these rode around in holsters so a finish like that is not often encountered.

I don't think the pictures are bad at all. They seem sharp enough to me. Remember that the original polish and finish were "utilitarian" which resulted in a rather dull appearance.

Since it's wearing Pachs, I would be keen to discover if there is any rust under them on the butt frame.

Assuming no rust, I think it would be a fair trade.

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